Tool-dressing apparatus



April 8, 1930. c e. WARREN TOOL DRESSING APPARATUS Filed Feb. 27, 1928IN V EN TOR. /ara 563%??? ATTORNEYS.

Fatented Apr. 3, 1930 UNITED STATES" PATENT OFFICE CLARENCE G. WARREN,OF KELLYVILLE, OKLAHOMA, ASSIGNOR 'IO GEORGE KRELL, v OF SAPULPA,OKLAHOMA TOOL-DRESSING APPARATUS Application filed. February 2'7, 1928.Serial N0. 257,206.

My invention relates to. apparatus for dressing oil well drilling toolsand more particularly to a ram line adjuster for such apparatus, theinvention having for its principal object to expedite the positioning ofthe tool dressing ram in proper functional position relative to thedrill bits to be dressed.

In accomplishing this and other objects of the invention I have providedimproved details of structure, the preferred forms of which areillustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of a portion of a derrick illustrating useof my invention.

Fig. 2 is a detail perspective view of the rain connector bar, and

Fig. 3 is a detail perspective view of the ram connector link.

Referring more in detail to the drawings:

1 designates an oil well drilling rig including a derrick platform 2,band wheel 3, band wheel shaft 4, and the crank 5 which ordinarilyoperates the walking beam 6 through the pitman 7, as in common oil wellpractice,

Mounted on the derrick platform 2 in line with the crank 5 is a blocksupport 8 and an anvil 9, so positioned as to support a drill bit 10with the pin 11 thereof resting in a socket 12 of the block and the bodyportion resting upon the anvil so that its cutting end is facing thecrank, as clearly shown in Fig. 1, in position to be dressed by aswinging ram 13 suspended from the top of the derrick and operated bythe band wheel crank 5, as now described.

Suspended from the crank block (not shown) of the derrick in alignmentwith the crank 5 and the bit 10 is a cable 14: for supporting aconnector bar 15 by a coupling link 16 comprising arectangular bodyportion 17 having hooks 18 at its upper and lower ends, the upperhookengaging a loop 19 formed on the end of the cable 14, and a slot 20in the body portion 17 of slightly greater depth than the width of thebar-for receiving the bar and supporting it in a substantiallyhorizontal position, as presently described.

The bar 15 comprises a fiat body portion having a plurality of notches21 and 22 formed in its upper and lower edges respectively, and anintegral neck portion 23 having a threaded end 2 1 directed toward thecrank 5 to which it is coupled by a connecting rod 25 having a threadedsocket 26 mounted on the threaded neck of the bar and an eye 27 at itsopposite end attached to the crank by a bolt 28 which extends throughthe eye and through one of the wrist pin openings 29 of the crank, sothat the rotation of the crank ef fects reciprocation of the bar 15 inthe longi tudinal direction of the bit to actuate the ram suspendedtherefrom as now. described.

30 designates a link similar to the link 16, having a slot 31 receivingthe connector bar 15 with the upper edge of the slot seating in one ofthe, notches 21 in the bar. The link 30 is further provided with hooks32, the depending hook suspending a chain 33 which is connected at itslower end with a loop 35 on the ram, the chain being of a length toposition the ram in end alignment with the bit. In order to preventcurving or flexing of the chain 33 when the ram is in operation, a pipe36 is preferably sleeved over the chain as shown in Fig. 1.

, In dressing a bit with the apparatus above described, the bit ispositioned on the derrick floor with its pin resting in the block 8 andits cutting end on the anvil pointing in the direction of the ram. Withthe parts so arranged, the pitman 7 is disconnected from the crank 5,the connecting rod 25 attached to the crank 5 by inserting the bolt 28in an opening of the crank to give the proper swing to the ram and theconnector link 16 engaged in one of the notches 22 in the-low er edge ofthe bar, so that the bar is supported in a substantially horizontalpositionwhen the crank is on dead center. The ram is then suspended fromthe bar by engaging the slot of the connector link 30 with one of thenotches 21 in the top edge of the bar so that the ram is positioned infront of the bit to give the proper blow which may be varied by movingthe link 30 into any one of the notches 21.

The band wheel is then rotated to cause the crank to reciprocate the barand swing the ram into contact with the bit, the ram being guided by thedriller or tool dresser to direct the force of the blow against thedesired place on the bit.

It is apparent that with my apparatus a ram line may be readily adjustedto vary the force of the blow and position the ram with relation to thelength of the bit to be dressed.

lVhat I claim and desire to secure by Letters Patent is:

1. Tooldressing apparatus including a ram line, a bar supported by theline, a ram suspended from the bar, means for actuating the bar tooperate the ram, and means for adjusting the ram transversely of theline.

2. Tool dressing apparatus including, in combination with a crank, asuspended ram line, an actuating bar supported by the line, drivingconnection between the bar and the crank, a ram suspended fromthe bar,and means for adjusting the ram longitudinally of the bar.

3. Tool dressing apparatus including a ram line, a bar supported by theram line and having a plurality of notches on its upper edge, anactuating crank, driving connection between the crank and the bar, aram, a hook member engaging one of the notches in the bar, andconnection between the hook member and the ram for supporting the ram.

4. Tool dressing apparatus including a ram line, a bar supported by theline, an actuating crank, a connector between the crank and the bar, ahook member supportec by and adjustable longitudinally of the bar,

' and a ram suspended from the hook member.

5. Tool dressing apparatus including a ram line, a bar suspended fromthe line, means for reciprocating the bar, a hook member supported byand adjustable longitudinally of the bar, and a ram suspended from thehook member.

6. Tool dressing apparatus including a ram line, a horizontal barsuspended from the line, means for reciprocating the bar, a ram, andmeans longitudinally adjustable on the bar and supporting the ramlongitudinally of the bar.

7. Tool dressing apparatus including a ram-sup porting member, areciprocator therefor, a ramline adjustably supporting theram-supporting member, and a ram adjustably suspended from theram-supporting member.

8. Tool dressing apparatus including a ram line, a bar supported by theline, an actuating crank, a connector between the crank and the bar, ahook member having a slot receivable by the bar, the hook member beingsupported by and adjustable longitudinally of the bar, and a ramsuspended from the hook member.

9. Tool dressing apparatus including a ram line. a bar having notches inits upper and lower edges, a pair of hook members havingslots receivableby the bar and hook portions on their ends, the bar supported from theline by one hook member engaging one of the lower notches in the bar, anactuating crank, a connector between the crank and the bar, and a ramsuspended from the other hook member engaging one of the upper notchesin the bar.

10. Tool dressing apparatus including a ram line, a bar having notchesin its upper and lower edges in staggered relation, a pair of hookmembers having slots receivable by the bar and hook portions on theirends, the bar supported from the line by one hook member engaging one ofthe lower notches in the bar, an actuating crank, a connector betweenthe crank and the bar, and a ram suspended from the other hook memberengaging one of the upper notches in the bar.

In testimony whereof I afiix my signature.

CLARENCE G. WARREN.

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